New Planets around Three G Dwarfs

Details New Planets around Three G Dwarfs New Planets around Three G Dwarfs

2007-02-07

arxiv.org/abs/astro-ph/0702213v1

Astrophys.J.660:1636-1641,2007

Astronomy and Astrophysics

Astrophysics

23 pages, 5 figures, accepted for publication in ApJ

Scientific paper

10.1086/513563

Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD23127, HD159868, and a possible second planetary companion to HD154857. These stars are all G dwarfs. The companions are all in eccentric orbits with periods ranging from 1.2 to >9.3yr, minimum (M sin i) masses ranging from 1.5 to >4.5 Mjup, and semimajor axes between 1 and >4.5 AU. The orbital parameters are updated for the inner planet to HD154857, while continued monitoring of the outer companion is required to confirm its planet status.

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